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#When

case when in sql server's stored procedure
https://docs.microsoft.com/en-us/sql/t-sql/language-elements/case-transact-sql Evaluatesalistofconditionsandreturnsoneofmultiplepossibleresultexpressions.T...
代码星球 ·2021-02-08

exception disappear when forgot to await an async method
https://github.com/aspnet/AspNetWebStack/issues/235https://stackoverflow.com/questions/5383310/catch-an-exception-thrown-by-an-async-void-method 如果异常发生在1个a...
代码星球 ·2021-02-08

What does the dot after dollar sign mean in jQuery when declaring variables?
https://stackoverflow.com/questions/22156664/what-does-the-dot-after-dollar-sign-mean-in-jquery-when-declaring-variablesIseevariablesdeclaredas:$.root=$("body")...
代码星球 ·2021-02-08

How to run a function when the page is loaded?
window.onload=codeAddress; shouldwork- here'sademo,andthefullcode:方法1<!DOCTYPEhtml><html><head><title>Test</title><me...
代码星球 ·2021-02-08

Make jQuery throw error when it doesn't match an element
解答1YoucouldmakeaplugintousetoensurethatthejQueryobjectisnotempty:$.fn.ensure=function(){if(this.length===0)throw"EmptyjQueryresult."returnthis;}Usage:$('ul.some...
代码星球 ·2021-02-08

ReSharper “Cannot resolve symbol” even when project builds
 Thisworkedforme(VS2012u4,R#7.1.3):Resharper>Options>Environment:General>ClearCachesRestartVisualStudio...
代码星球 ·2021-02-08

jquery中$.when().done()的使用 同时调用两个ajax 渲染到一个html中
    第一次使用when和done记录一下...
代码星球 ·2021-02-05

CASE WHEN 及 SELECT CASE WHEN的用法
CASEWHEN及SELECTCASEWHEN的用法Case具有两种格式。简单Case函数和Case搜索函数。简单Case函数CASE sexWHEN '1' THEN '男'WHEN '2' THEN '女'ELSE '其他' ...
代码星球 ·2021-02-05

Springboot+mybatis事务回滚时报错处理。Cannot change the ExecutorType when there is an existing transaction
org.springframework.dao.TransientDataAccessResourceException:CannotchangetheExecutorTypewhenthereisanexistingtransactionatorg.mybatis.spring.SqlSessionUtils.ses...
代码星球 ·2021-02-03

Hive中case when的两种语法
总结一下：两种表达方式是等效的方法一：casewhentb1.os='android'then'android'whentb1.os='ios'then'iPhone'else'PC'endasos方法二：casetb1.oswhen'android'then'android'when'ios'then'iPhone'...
代码星球 ·2021-01-31

SQL Case when 的使用方法（转自博客园：影子网络科技有限公司）
Case具有两种格式。简单Case函数和Case搜索函数。--简单Case函数CASEsexWHEN'1'THEN'男'WHEN'2'THEN'女'ELSE'其他'END--Case搜索函数CASEWHENsex='1'THEN'男'WHENsex='2'THEN'女'ELSE'其他'END这两种方式，可以实现相同的功...
代码星球 ·2021-01-12

MySQL遇到Deadlock found when trying to get lock，解决方案
最近遇到一个MYSQLupdate语句出现Deadlockfoundwhentryingtogetlock的问题，分析一下原因。什么情况下会出现Deadlockfoundwhentryingtogetlock？https://dev.mysql.com/doc/refman/5.6/en/innodb-deadlock...
代码星球 ·2020-12-30

lr使用linux Generator测试https莫名报 SSL protocol error when attempting to connect with host
　　接收一个性能测试任务，各种原因需要使用linuxagent产生压力。诡异的事发生了，同样脚本windows回放成功，使用linuxagent报如下错误，脚本回放失败。Action.c(33):Error-27778:SSLprotocolerrorwhenattemptingtoconnectwithhost"xx...
代码星球 ·2020-12-30

SQL的case when then else end as语句的用法
学生-分数表STUDENT_SCORE  想要在sql中根据学生的分数自动判定学生成绩的等级：SELECTNAME,CASEWHENSCORE<60THEN'不及格'WHENSCORE<90THEN'良好'ELSE'优秀'ENDASRANKFROMSTUDENT_SCORE结果为：...
代码星球 ·2020-12-18

sqlite3, IntegrityError: UNIQUE constraint failed when inserting a value
sqlite报错：sqlite3.IntegrityError:UNIQUEconstraintfailed:IMAGESTATUE.ID 解决方案：ChangeINSERTtoINSERTORIGNORE　　...
代码星球 ·2020-12-17
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